Apparatus for constructing concrete floors.



Y w. L. CHURCH.

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APPLICATION HLED MARJII 1918- Patented Dec. 31,1918

' 2 SHEETS-HEET l ma ma W L. CHURCH.

APPARATUS FOR cowsmucnms CONCRETE FLOORS.

APPLICATION FILED MAR. 7| I9l8 Patented Dec. 31, 1918.

-SHEET 2.

2 SHEETS forms, each having the lower edges of two opposite sidesresting on a pair 0t adyacent support-members, and means for securingthe adjacent lower edges 01 each pair of down-turned stitfenin memberand su )orting but not secured to the-horizontal extension of the formadjacent thereto.

r-Xpparatus for constructing concrete floors comprising in combinationlaterallyspaced channels, dome-shaped concrete forms each having thelower edges of two opposite sides resting on a pair of adjacentchannels, and means for clamping the adjacent lower edges of each pairof forms to the flanges of a channel, the lower edges of the other twosides of each form ext-ending horizoi'itally outwardly and one only ofsuch horizontal extensions terminating in a down-turned lip andsupporting but not secured to the horizontal extension of the formadjacent thereto.

3. In an apparatus for constructing concrete floors, a term consistingof a foursided integral, sheet metal dome having two straight sidesconstructed and arranged to rest on a supporting-mmnher and having thelower edges of the other two sides extending horizontally outwardlv andone only of such horizontal efitensions terminating in a down-turnedlip.

In testimony whereof, l have hereunto subscribed my name this 25th dayof February 1918.

W'ELLIA-lll L. CHURCH.

